Comparison of single-photon counting and charge-integrating detectors for X-ray high-resolution imaging of small biological objects

被引：21
|
作者：
Frallicciardi, Paola Maria [1 ]
Jakubek, Jan [2 ]
Vavrik, Daniel [2 ]
Dammer, Jiri [2 ]
机构：
[1] Univ Naples Federico 2, Dipartimento Sci Fis, Naples, Italy
[2] Czech Tech Univ, Inst Expt & Appl Phys, CZ-12800 Prague 2, Czech Republic
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2009年 / 607卷 / 01期
关键词：
Digital radiography; Small-animal imaging;
D O I：
10.1016/j.nima.2009.03.158
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
This work presents a direct comparison of two pixel detectors: a charge-integrating flat panel imager coupled to a Csl:Tl scintillator and a hybrid silicon detector of Medipix2 type, working in a single-photon counting mode. The comparison concerns image quality in terms of system-spatial resolution, signal-to-noise ratio and contrast in imaging of small biological objects. It will be shown that, at photon energies below 40 keV and for low attenuating biological objects, single-photon counting detectors are more appropriate for small-animal imaging than flat panel devices right due to better spatial resolution, signal-to-noise ratio and contrast. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：221 / 222
页数：2
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